Table 3.
Air kerma rates in mGy s−1 delivered by the irradiator for different combinations of tube voltages (kVp) and tube currents (mA)
| mA | kVp |
||
|---|---|---|---|
| 225 | 100 | 40 | |
| 0.1 | 0.33 | 0.19 | 0.03 |
| 0.3 | 1.00 | 0.53 | 0.09 |
| 0.5 | 2.00 | 0.88 | 0.15 |
| 0.7 | 2.67 | 1.25 | 0.22 |
| 1 | 3.67 | 1.79 | 0.32 |
| 5 | 11.3 | 8.98 | 1.58 |
| 7 | 18.7 | 12.6 | 2.21 |
| 10 | – | 17.9 | 3.16 |
| 13 | 48.3 | – | – |
| 20 | >tube max. power | 35.9 | 6.31 |
| 30 | >tube max. power | 53.7 | 9.44 |
max., maximum.
Uncertainties on air kerma rates do not exceed 2.3% for the 225-kVp beams and 3.5% for the 100- and 40-kVp beams.
– : no measurement performed for these kVp-mA combinations.